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17990-20-4

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17990-20-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17990-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,9 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 17990-20:
(7*1)+(6*7)+(5*9)+(4*9)+(3*0)+(2*2)+(1*0)=134
134 % 10 = 4
So 17990-20-4 is a valid CAS Registry Number.

17990-20-4Downstream Products

17990-20-4Relevant articles and documents

Microbial Transformation of cis-Abienol

Hieda, Tadaharu,Mikami, Yoichi,Obi, Yukiteru,Kisaki, Takuro

, p. 2249 - 2256 (2007/10/02)

A study was made of the microbial transformation of cis-abienol, a main precursor of the tobacco aroma principle, by an unidentified soil bacterium JTS-162.Four new compounds were isolated from the culture broth as transformation products.They were elucidated to be (12Z)-labda-8(17),12,14-triene, (12Z)-labda-8(17),12,14-trien-18-ol, (12Z)-labda-8(17),12,14-trien-18-al and 4,18,19-tri-nor-3,4-seco-5-oxo-(12Z)-labda-8(17),12,14-trien-3-oic acid by spectrometry and syntheses.Based on experiments with a degradation sequence, the biotransformation pathway of cis-abienol by the bacterium was proposed.

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